Apparatus for mixing aeriform fluids



(No Model.)

- J. P. BARKER.

APPARATUS FOR MIXING AERIFURM FLUIDS. No. 252,009. Patented Jan. 10,1882.

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N. FEYERS, PlwloLilhographun Wishingtnn. D. c

l NITED STATES PATENT OFFIC JOHN F. BARKER, OF SPRINGFIELD, MASSACHUSETTS.

APPARATUS FOR MIXING AERIFORM FLUIDS.

SPECIFICATION forming part of Letters Patent No. 252,009, dated January 10, 1882.

i Application filed May 31,1881. (No model.) a i To all whom it may concern Be it known that 1, JOHN F. BARKER, of Springfield, in the county of Hampden and State of Massachusetts, have invented a new and useful Improved Apparatus for Mixing Aeriform Fluids, of which the following is a specification and description.

The object of my invention is to provide an economical and effective apparatus for regulating the mixture of two aeriform fluids in any desired proportions which may be predetermined upon, the said apparatus being-particularly adapted for the admixture of atmospheric air with any light hydrocarbon vapor for the purpose of illumination; and I accomplish this by the means substantially hereinafterdescribed, and illustrated in the accompanying drawings, in which-- Figure I is a plan view of one modification of my invention. Fig. 11 is a vertical section of the same at line E of Fig. 1. Fig. III is a vertical section through one of the valve-chambers at line F of Fig. II. Fig. 1V is a horizontal section at line D of Fig. III; and Fig. Visa vertical section through the middle of .the valves and diaphragm, showing another modification of the same invention.

In the drawings, A and A denote respectively theouterand inner upright cylinders,with

, chamber between the said upright" cylinders and into the sealing fluid placed therein,

Below the inner upright cylinder, A,which is open at the bottom, is a chamber, 0, communicating therewith, and which is provided at two suitable points in the side with the apertures 7 and 16, and to the outside of this chamber is bolted a valve-chamber, as 18, covering the-aperture 16, and containing an ordinary slide-valve, as 14, to open or close more" gated, as shown in dotted lines at 29, and behind the upper and lower sides of this aperture 19 guideways or grooves, as 6, are made, in which is adapted to move, in a horizontal direction, aslide, as 3, whose outer face is on the same plane with that side of the chamber 2, p

and both of which'faces form the vertical sea-t upon which the valve 1 moves. This valve 1 is also operated by a rod, as 9, connected with the diaphragm B, and the slide 3 is provided with a handle, as 10, by which it may be moved either in or out, to close or open more or less the valveoperture 19. An outside and inside vertical cylinder, as 4, is made on both valvechambers 2 and l8, and an inverted cup, as 5, is made on each valve-rod, whose open lower end extends down into the space between said outside and inside cylinders 5, and into some sealing fluid-such as quicksilver-placed therein, to prevent the air or gas from passing out around the rod-opening in the valve-chamber. r

llig. V represents a modification, in which a dry diaphragm, B, is secured between the two parts ofthe case A, into the lower part of which case the pipe G admits the vapor-gas through the aperture at the valve 14, the gas passing out from said case through the pipeH into the pipe F. The air to be mixed with the gas is admitted through the pipe E and aperture at the valve 1, and thence into the gas-pipe F, where it passes through an ordinary mixer. These two valves 14 and 1 are connected to a rod,9, and thelatter secured to the diaphragm,

so that any variation in the pmssurcoithe gas;

beneath the diaphragm will cause a corresponding movement up and down of the diaphragm, and also of the rod and the valves connected therewith, to open or close their apextures in a corrresponding degree. This arrangement of valves is particularly useful in will be too rich in carbon to produce the best results for illumination. In such case it becomes necessary to dilute the gas with a proper admixture therewith of common atmospheric air; and for this purpose I propose to use the valve 1, a part of whose seat is movable andadj ustable to make the aperture variable, which is governed by the valve to permit a greater or less quantity of air to pass through to be mixed with the gas. If from any cause the gas is too rich in carbon to produce thc best result, the slide or movable part 3 of the seat of the valve 1 is drawn out by its handle, the valveaperture thereby enlarged, and the desired increased amount of common air is admitted to pass into the gas-pipe and be mixed with the vapor; but if the carbon of the vapor-gas should have become partially exhausted, and the gas require less dilution with common air, the slide 3 is moved in, the valve-aperture thereby reduced, and a less quantity ofair admitted for mixture with the gas. In this manner the proper and desired amount of atmospheric air may be admitted to the gas-pipe to be mixed with the gas, so that substantially the same illuminatingresults will be obtained at all the burners, under all circumstances, whether few or many burners are used, and whether the generator which supplies the vapor-gas to the burners be fully supplied with hydrocarbon oil or is more or less exhausted of the gas-making material.

I am aware that various means haveheretofore been used to regulate the admission of common air to the vapor-gas supplied from a generator containing hydrocarbon oil by valves having a variable or adjustable aperturc, as shown in Letters Patent granted to me November 30, 1880, and others, and I do not claim the same irrespective of my construction of the same, in which a valve is used having a part of its seat made movable or adjustable.

In order that either slide-valve may always fit to its seat properly, a spring sufficiently strong for the purpose may be made to press against the back of the valve, and keep the latter properly against its. seat, as shown at L.

Having thus described my invention, what I claim as new is- 1. The combination, in an apparatus for mixing aeritorm fluids, of a movable diaphragm connected with and operating two slide-valves whose apertures communicate with a common mixing pipe or chamber, and a valve-seat having a portion thereof movable and adjustable, to enlarge or diminish the aperture of one of said valves, substantially as and for the purpose described.

2. The combination, in an apparatus for mixing aeriform fluids, of a valve-chamber, a valve within said chamber, a valve-rod secured to and adapted to operate said valve, and extending through one side of said valve-chamber, a cup made upon the outside of said valve-chem her and around said rod and adapted to con-- 

